The Penguins of Madagascar - Season 1 Episode 21 -

Mort quadruples in size after an accident with one of Kowalski's inventions, a super-ray designed to enhance fish. After finally realizing that Mort is super strong, Julien uses him to steal food and supplies from the other animals, like stealing an elephant's peanuts, Joey's (from Assault and Batteries) hay for Julien art work.